html {
  overflow: hidden;
}
body,
dl,
dt,
dd,
ul,
ol,
li,
pre,
form,
fieldset,
input,
p,
blockquote,
th,
td {
  font-weight: 400;
  margin: 0;
  padding: 0;
}
html,
body {
  width: 100%;
  height: 100%;
  font-size: 100px;
}
h1,
h2,
h3,
h4,
h4,
h5 {
  margin: 0;
  padding: 0;
}
* {
  box-sizing: border-box;
}
body {
  background-color: #fff;
  color: #fff;
  font-family: Helvetica, Arial, sans-serif;
  font-size: 14px;
  text-align: left;
}
select {
  font-size: 12px;
}
table {
  border-collapse: collapse;
  border-spacing: 0;
}
th,
td {
  vertical-align: middle;
}
a {
  outline: none;
  text-decoration: none;
  -webkit-backface-visibility: hidden;
}
a:focus {
  outline: none;
}
fieldset,
img {
  border: 0 none;
}
fieldset {
  margin: 0;
  padding: 0;
}
fieldset p {
  margin: 0;
  padding: 0 0 0 8px;
}
legend {
  display: none;
}
address,
caption,
em,
strong,
th,
i {
  font-style: normal;
  font-weight: 400;
}
ol,
ul {
  list-style: none;
}

/*定义滚动条高宽及背景 高宽分别对应横竖滚动条的尺寸*/
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
  background-color: transparent;
}

/*定义滚动条轨道 内阴影+圆角*/
::-webkit-scrollbar-track {
  -webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.3);
  border-radius: 10px;
  background-color: transparent;
}

/*定义滑块 内阴影+圆角*/
::-webkit-scrollbar-thumb {
  border-radius: 10px;
  -webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.3);
  background-color: rgba(62, 192, 239, 0.4);
}
